Cylinder for threshing-machines.



:PATENTED DEC. 5, 1905.

I A. L. GILL. l

CYLINDER FOR THRESHING MACHINES.

APPLIOATION FILED DBO. 3. 1904.

UNITED s'rA'rEs PATENT oEEIoE.

ALBERT L. GILL, oE rEENToN. NEw JERSEY.

CYLINDER FOR "IHRESHING-MACHINES.

Specification of Letters Patent.

Application filed December 8, 1904. Serial No. 235 ,373.

Patented Dec. 5, 1905.

To all whom it may concern:

- Be it known that I, ALBERT L. GILL, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented certain new and useful Machines, of which the following is a spec cation.

My invention relates tocylinders used in threshing-machines forv threshing or separating the grain-from the straw by rubbing the heads of the grain'between such cylinder and Improvements in Cylinders for Threshingthe concaves of the machine.

' and great inconvenience in its operation.

Many efiorts have been made by manufacturers of such machinery to overcome this defect, but with only limited success and then by the use of cumbersome and complicated devices.

The object of my invention is to provide a simple and. eflicient construction which will entirely obviate all said defect in such apparatuses.

In the accompanying drawings, forming a part of thisv specification, Figure 1 is a side view of a cylinder embodying my invention; and Fig. 2 is a central longitudinal sectional view of the cylinder, the ribs or staves of the cylinder being removed. I

At each end of the cylinder is a metal head A, which has a peripheral flange a, extending outwardly at a right angle therewith. From the opposite side of thehead A extends at arightangle therewith the flange b. The head Y A is also provided with the hub c to give it a proper bearing on the metal rod (1. The

heads A, withtheir flanges and hubs, are made preferably integral and of cast iron or steel.

E is a metal tube, preferably of a diameter approximating one-half of the diameter of t e headsA and which at each end is reinforced on its outer side by a metal band e, encircling it. This tube E fits closely over the flange c of each head A, and its ends are brought flush u to the inner faces of the Webs of said hea s and firmly attached theretoby set-screws, as shown in Fig. 2. Within the tube E and toward the ends thereof are small heads F F, which are provided with pe' ripheral flanges formed at a right angle with the. webs'of the heads and with hubs, as shown in Fig. 2.

The rods d d are passed through the hubs of theheads A A and fixed firmly therein by splines or feathers f f in the well-known manner and are also fixed in the same way in the hubs of the heads F F by the splines or feathersg g. The said heads F F are firmly attached to the tube E by. set-screws h, as shown in Fig. 2.

. On the outside of the tube E are fixed the flanged heads or supports G G G Gr G which, with the exce tion of G are formed similiarly to the hea s F, but of the same diameter of the heads A and withhubs of suffigrooved on their outer faces, as shown in Fig.

1 The rods (1 d are journaled in the thresher and, with tube E, form the shaft of the cylind'er to which power is transmitted to drive the same.

This construction forms a erfectly rigid shaft and cylinder which will yield to any pressure which may be placed upon it in use. Y

- Having thus described my invention, I claim A threshing-machine cylinder, com rising gudgeons, heads secured thereon, sai heads having inwardly-projecting flanges, a tube secured to said flanges, annular supports inter osed between the interior ofsaid tube an said gudgeons, annular sup orts secured not bend orto the exterior of said'tube an longitudinal strips-secured to the last-mentioned annular supports.

, ALBERT L. GILL. Witnesses:

' MARGE T. SrMPsoN,

I. M. A TEMUs. 

